To flip the current card, click it or press the Spacebar key.
To move the current card to one of the three colored boxes, click on the box. You may also
press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to
move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.
You may also click on the card displayed in any of the three boxes to bring that card back to the
center.

Human coronavirus strains fall into serological groups, which are named:

OC43 and 229E

This virus has a high frequency of what mutations?

Deletion mutations and recombination during replication which is unusual for an RNA virus with unsegmented genome

Coronaviruses may be associated with:

Gastroenteritis which occurs year-round

Other viruses to cause common colds are

1) Coxsackie virus which is an enterovirus that causes herpangina ( severe sorethroat and vesiculoulcerative lesions in the palate or around thetonsils )
2) Adenovirus, which also responsible for pharyngitis
and even for pneumonia
3-influenza

Pharyngitis is:

An inflammatory process of the pharynx caused by viral agents mainly and bacteria

Erythema of tymbanic membrane or Distinct otalgia
The patients most of the time –especially children - present with severe pain that prevents them from sleeping and
sometimes with otorrhoea
You should start antibiotic treatment immediately